- Category selector replaced with checkboxes — items can now be
assigned to multiple categories directly in admin (not just Square).
Each category shows a "Square" label if it came from the Square
assignment. Saves as categoriesOverride[] (array of category names).
- categoriesOverride takes precedence over old categoryOverride in the
catalog route; old overrides still work as fallback.
- Requires-delivery toggle and custom rate fields were already in the
code but needed container rebuild to appear — no logic change.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>